CN101300863A - Wireless access network device, mobile station and switch control method - Google Patents
Wireless access network device, mobile station and switch control method Download PDFInfo
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 33
- 238000005259 measurement Methods 0.000 claims description 20
- 238000012545 processing Methods 0.000 description 25
- 238000010295 mobile communication Methods 0.000 description 18
- 230000005540 biological transmission Effects 0.000 description 13
- 230000015572 biosynthetic process Effects 0.000 description 13
- 238000003786 synthesis reaction Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
- H04W36/38—Reselection control by fixed network equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/12—Access point controller devices
Abstract
A radio access network apparatus comprises a receiving part (211) that acquires, from a mobile station, a radio quality data indicative of the radio quality of a communication link between the mobile station and a base station; a command generating part (261a) that generates a determination command for starting a determination of the communication status of a peripheral cell of the mobile station when the radio quality data satisfies a predetermined condition; and a transmitting part (281) that transmits the determination command to the mobile station.
Description
Technical field
The present invention relates to wireless access network device, travelling carriage and method for handover control.
Background technology
In mobile communication system in the past, mobile station UE is measured the communication conditions from the link of peripheral cell, and based on this result, Radio Access Network (Radio Access Network, below be designated as RAN) to the connection of mobile station UE indication switching cell, mobile station UE is based on from the indication of RAN and the connection of switching cell, thereby implements to switch.
Specifically, mobile station UE is used compact model (compress mode) shown in Figure 9, measure the communication conditions (measured value of propagation loss, received power, signal are to noise power ratio etc.) of the link between this mobile station UE and the peripheral cell termly, as the communication conditions in the peripheral cell.Compact model is one of employed method when the communication conditions of measuring in order to switch in the peripheral cell.
Further specify compact model with reference to Fig. 9.In addition, the figure after Fig. 9 (b) enlarges the part of Fig. 9 (a).
Mobile station UE is measured the communication conditions in the peripheral cell when implementing to switch.Usually, because mobile station UE only possesses a communicator, so in data communication, can't measure the communication conditions in the peripheral cell.Therefore, mobile station UE by with the link of base station on, stop transmit frame (stopping to send) specified time limit, and be provided with and send gap (gap) from the base station, thereby the communication conditions of the base station of mobile station UE management by measurement peripheral cell and the link between the mobile station UE during this period.
For example, in 3GPP, measure the communication conditions of the Common Pilot Channel that sends from the base station, as the communication conditions in the peripheral cell.
Mobile station UE termly or satisfying certain condition when (for example, measured value exceeds threshold value etc.) sends to RAN by wave point with the measurement result of the communication conditions in this sub-district and the peripheral cell.
RAN judges that according to these measurement results the necessity that connects is switched in the sub-district of the current connection of this mobile station UE, and mobile station UE is sent the order of the connection that is used for switching cell in suitable timing.In mobile communication system in the past, mobile station UE is according to the connection of this order switching cell, thereby (for example, with reference to non-patent literature 1, non-patent literature 2) switched in enforcement.
But in mobile communication system in the past, in order to implement to switch, mobile station UE need be measured the communication conditions with this sub-district and peripheral cell continually, and mobile station UE will expend resources such as a lot of power for this reason.
For example in compact model shown in Figure 9, can need be transmitted at a high speed in the time that can send in the data that send the time period that sends during the gap.
Therefore, in mobile communication system in the past, guarantee transfer rate, line quality by reduction spread spectrum rate, raising power before and after the transmission gap, thereby the high speed that can carry out data transmits.
Like this, in mobile communication system in the past, owing to mobile station UE needs a lot of power in order to implement to switch, so there is the problem of the battery that quickens the consumption mobile station UE.
In addition, in order to implement to switch, mobile station UE need measure with peripheral cell in communication conditions, and measurement result sent to the base station, the base station sends the order of the connection that is used for switching cell etc. based on this measurement result, have the problem that needs a large amount of processing.
Non-patent literature 1:3GPP TSG-RAN TS25.212 v6.6.0
Non-patent literature 2: " W-CDMA mobile communication " Keiji Tachikawa chief editor, p.140
Summary of the invention
Therefore, the present invention finishes in view of above-mentioned problem, and it is a kind of when implement switching that its purpose is to provide, and alleviates the processing of travelling carriage and alleviates wireless access network device, travelling carriage and the method for handover control of the resource of the travelling carriage that is used to implement to switch and uses.
The of the present invention the 1st is characterised in that wireless access network device comprises: receiving element, obtain the wireless quality data of the wireless quality that is used for representing the communication link between this travelling carriage and the base station from travelling carriage; The order generation unit when described wireless quality data satisfy rated condition, generates the mensuration order of the communication conditions of the peripheral cell be used for beginning measuring described travelling carriage; And transmitting element, send described mensuration order to described travelling carriage.
The of the present invention the 2nd is characterised in that wireless access network device comprises: receiving element, obtain the wireless quality data of the wireless quality that is used for representing the communication link between this travelling carriage and the base station from travelling carriage; The order generation unit when described wireless quality data satisfy rated condition, generates the switching command that is used for switching to from the 1st sub-district of the current connection of this travelling carriage 2nd sub-district different with described the 1st sub-district to described travelling carriage; And transmitting element, send described switching command to described travelling carriage.
The of the present invention the 3rd is characterised in that, comprising: wireless quality determination unit, the wireless quality in the communication link between mensuration and the base station, the wireless quality data of this wireless quality of acquisition expression; Receiving element is obtained the mensuration order that is used for beginning measuring the communication conditions of peripheral cell from wireless access network device; Determination unit after having obtained described mensuration order, is measured the communication conditions in the peripheral cell; And transmitting element, the measurement result of described wireless quality data and described communication conditions is sent to described wireless access network device.
The of the present invention the 4th is characterised in that method for handover control comprises: travelling carriage is obtained the step of the wireless quality data of the wireless quality that is used for representing the communication link between this travelling carriage and the base station; Wireless access network device is obtained the step of wireless quality data from described travelling carriage; When described wireless quality data satisfied rated condition, wireless access network device generated the step of mensuration order of the communication conditions of the peripheral cell that is used for beginning measuring this travelling carriage to described travelling carriage; Described wireless access network device sends the step of described mensuration order to described travelling carriage; And described travelling carriage is measured the step of the communication conditions in the peripheral cell of this travelling carriage.
Description of drawings
Fig. 1 is the overall structure figure of the mobile communication system of the present invention's the 1st execution mode.
Fig. 2 is the functional-block diagram in the base station of mobile communication system of the present invention's the 1st execution mode.
Fig. 3 is the functional-block diagram in the travelling carriage of mobile communication system of the present invention's the 1st execution mode.
Fig. 4 is the functional-block diagram of base station of the mobile communication system of the present invention's the 2nd execution mode.
Fig. 5 is the functional-block diagram of base station of the mobile communication system of variation of the present invention.
Fig. 6 is the functional-block diagram of travelling carriage of the mobile communication system of variation of the present invention.
Fig. 7 is time series pattern (sequence pattern) figure of the action of the method for handover control in the mobile communication system of expression embodiment of the present invention.
Fig. 8 is the time series pattern figure of action of the method for handover control in the mobile communication system of expression variation of the present invention.
Fig. 9 is used to illustrate the figure of the compact model of invention in the past.
Embodiment
(mobile communication system of the present invention's the 1st execution mode)
Referring to figs. 1 through Fig. 3, the wireless access network device of the present invention's the 1st execution mode is described.
In the example of Fig. 1, and the sub-district managed by wireless base station NodeB#1 between formed link mobile station UE constitute, the wireless quality of the sub-district of measuring the sub-district of being managed by wireless base station NodeB#1 at mobile station UE place and being managed by wireless base station NodeB#2, and the CQI (CQI, Channel Quality Indicator) that will represent wireless quality sends to wireless base station NodeB#1 from mobile station UE.
In the example of Fig. 1, be connected by link between the sub-district of mobile station UE and wireless base station NodeB#1.
But when obtaining CQI and CQI from mobile station UE and satisfy rated condition, wireless base station NodeB#1 makes mobile station UE begin to measure the communication conditions of a plurality of links that connect mobile station UE and wireless base station NodeB#1 and wireless base station NodeB#2.
The wireless base station NodeB#1 that has received the measurement result of communication quality from mobile station UE selects the optimal sub-district be connected with mobile station UE, and indicates the connection of mobile station UE switching cell.
The mobile station UE that is instructed to switch connection by wireless base station NodeB#1 is switched from the sub-district of current connection and is connected to different sub-districts.Thus, implement to switch.
The wireless line control station RNC of present embodiment is the device that is positioned at the upper strata of wireless base station NodeB, the radio communication between control wireless base station NodeB and the mobile station UE.
In the present embodiment, with this wireless line control station RNC and wireless base station NodeB in the lump as wireless access network device.
Thereby use Fig. 2 to further specify and obtain the function that CQI indication mobile station UE is measured the wireless access network device of communication conditions from mobile station UE.
In addition, Fig. 2 illustrates wireless base station NodeB#1, but in access network device of the present invention, also part of functions can be arranged on wireless line control station RNC, and other wireless base station NodeB also has same function.
As shown in Figure 2, wireless base station NodeB#1 comprises: receiving element 211, multiplexing separative element 221, CQI processing unit 231, comparing unit 241, fiducial value database 251, order generation unit 261a, multiplexing synthesis unit 271, transmitting element 281.
But these structures not necessarily will independently exist as hardware.That is, each structure can be fit, also can constitute by software processes (process).
Receiving element 211 constitutes, and receives link signal via the link from mobile station UE from mobile station UE.
Multiplexing separative element 221 constitutes, the user data of obtaining the link signal to be comprised from receiving element 211.And multiplexing separative element 221 constitutes, and the CQI that obtains the link signal to be comprised from receiving element 211 also is sent to CQI processing unit 231.
In addition, multiplexing separative element 221 constitutes, and obtains CQI from receiving element 211, and is sent to wireless line control station RNC via transmitting element 281, transmission/reception antennas 291.
The mean value that CQI processing unit 231 calculates as the CQI of transient data is average CQI, and average CQI is sent to comparing unit 241.
Thus, comparing unit 241 can not compared with the threshold value of the average CQI that obtains from fiducial value database 251 by about the variable quantity of instantaneous wireless quality data institute.
Here, average CQI not necessarily is exactly the mean value of CQI, as long as can make the variation smoothing of instantaneous wireless quality data.
Here, CQI is the amount that totally defines feedback information, is used for following the propagation change (for example, decline at a high speed) of the high speed of communication.
Specifically, comprise the signal noise power ratio (below be designated as SIR) of mobile station UE instantaneous measurement, instantaneous received power, instantaneous propagation loss etc. among the CQI.
For example, in WCDMA (Wideband Code Division Multiple Access (WCDMA), Wideband Code Division MultipleAccess), mobile station UE constitutes, and measures the SIR of two-value, and the SIR of two-value is sent to the wireless base station NodeB#1 of this sub-district of management.
Similarly, in HSDPA (high-speed downlink packet inserts, High-speed Downlink PacketAccess), mobile station UE constitutes, and measures instantaneous SIR, and to the CQI after the wireless base station NodeB transmission quantization.
Here, be defined as CQI when big, the communication conditions of the sub-district of mobile station UE and wireless base station NodeB#1 is good, and CQI is poor than hour communication conditions.
Comparing unit 241 constitutes, relatively the threshold value of average CQI that obtains from CQI processing unit 231 and the average CQI that obtains from fiducial value database 251.
Than threshold value hour, the generation order of mensuration order that comparing unit 241 will be used for making mobile station UE to begin to measure the communication conditions of a plurality of sub-districts at mobile station UE place and the link between the mobile station UE is sent to order generation unit 261a at average CQI.
On the other hand, when average CQI is bigger than threshold value, comparing unit 241 will be used for stopping to measure the generation order that the mensuration of the communication conditions of a plurality of sub-districts at mobile station UE place and the link between the mobile station UE ceases and desist order and be sent to order generation unit 261a.
In addition, order generation unit 261a constitutes, the generation order of ceasing and desisting order based on the mensuration that obtains from comparing unit 241, the mensuration that mobile station UE is generated the communication conditions of a plurality of sub-districts be used for stopping to measure the mobile station UE place and the link between the mobile station UE is ceased and desisted order, and will measure to order and be sent to multiplexing synthesis unit 271.
Multiplexing synthesis unit 271 constitutes, one of them control command that reception is ceased and desisted order from the order mensuration order that obtains of generation unit or mensuration and send data, carry out multiplexing synthesizing, apply and be transformed to the radio band Signal Processing, thereby be sent to transmitting element 281.
Transmitting element 281 constitutes, and the signal of obtaining from multiplexing synthesis unit 271 and multiplexing separative element 221 is amplified, and send to mobile station UE and wireless line control station RNC via transmission/reception antennas 291.
Fig. 3 represents the summary structure example of the mobile station UE of present embodiment.As shown in Figure 3, mobile station UE has: receiving element 10, multiplexing separative element 11, command process unit 12, CQI determination unit 13, switching determination unit 14, switching signal generation unit 15, multiplexing synthesis unit 16, transmitting element 17.
But these structures not necessarily will independently exist as hardware.That is, each structure can be fit, also can constitute by software processes.
Receiving element 10 receives CQI and physical data via down link from Radio Access Network.
Multiplexing separative element 11 constitutes, the user data of obtaining the physical data to be comprised from receiving element 10.And multiplexing separative element 11 constitutes, and obtains from receiving element 10 and measures order and be sent to command process unit 12.
In addition, multiplexing separative element 11 constitutes, and obtains data from receiving element 10, and is sent to the CQI determination unit and switches determination unit 14.
Switching signal generation unit 15 constitutes, and receives and switches measurement results from switching determination unit 14, and will switch measurement result or the switching command that is used to indicate Radio Access Network to switch is sent to multiplexing synthesis unit 16.
Multiplexing synthesis unit 16 constitutes, reception is from the CQI of CQI determination unit, send data from switching measurement result or switching command, user data and the control data etc. of switching signal generation unit 15, carry out multiplexing synthetic, apply and be transformed to the radio band Signal Processing, thereby be sent to transmitting element 17.
Transmitting element 17 constitutes, and the signal of obtaining from multiplexing synthesis unit 16 is amplified, and send to wireless access network device via transmission/reception antennas 18.
(effect and the effect of the mobile communication system of the present invention's the 1st execution mode)
The wireless access network device of the present invention's the 1st execution mode comprises: receiving element 211, obtain the wireless quality data from mobile station UE; Order generation unit 261 when the wireless quality data satisfy rated condition, generates the mensuration order be used to begin measure the communication conditions of the link that connects mobile station UE and wireless base station NodeB; And transmitting element 281, send the mensuration order to mobile station UE.
Thus, mobile station UE does not need to measure continually the communication conditions with this sub-district and peripheral cell, and the communication conditions of only measuring when the wireless quality data satisfy rated condition with this sub-district and peripheral cell gets final product.In addition, can reduce and be used to implement switching processing.
That is, can be provided at the Radio Access Network that can to alleviate the processing of mobile station UE when implementing to switch and to alleviate the resource of the mobile station UE of using in order implementing to switch.
In addition, the mobile station UE of the present invention's the 1st execution mode comprises: CQI determination unit 13, measure wireless quality, and obtain the wireless quality data; Receiving element 10 is obtained the mensuration order from wireless access network device; Switch determination unit 14, measure communication conditions for the link of wireless base station NodeB; Transmitting element 17 sends to wireless access network device with the measurement result of wireless quality data and communication conditions.
Thus, by the wireless quality of travelling carriage mensuration from this sub-district, and measurement result sent to Radio Access Network, thereby, also can grasp the communication conditions in this sub-district even Radio Access Network is not used to the measurement result of the communication conditions in the peripheral cell of mobile station UE.
That is, can when implementing to switch, alleviate the processing of mobile station UE, and alleviate the resource of the mobile station UE that is used to implement to switch and uses.
(mobile communication system of the present invention's the 2nd execution mode)
With reference to Fig. 4, the wireless access network device of the present invention's the 2nd execution mode is described.
In the example of Fig. 4, mainly be that the wireless access network device of the processing of the multiplexing separative element 222 that possessed of wireless base station NodeB# 1, CQI processing unit 232, comparing unit 242 and the 1st execution mode is different.
Specifically, multiplexing separative element 222 constitutes, and obtains CQI and is sent to transmitting element 282 from receiving element 212.
Transmitting element 282 constitutes, and obtains CQI from multiplexing separative element 222, calculates transmitted power, transmission rate based on CQI, and is sent to wireless line control station RNC and mobile station UE via transmission/reception antennas 292.
In addition, transmitting element 282 constitutes, and above-mentioned transmitted power, transmission rate information are sent to CQI processing unit 232.
Here, mean value I not necessarily is exactly the mean value of transmitted power, transmission rate information, so long as the amount of transmitted power, the smoothing of transmission rate change in information is got final product.
Comparing unit 242 constitutes, relatively the threshold value of mean value I that obtains from CQI processing unit 232 and the mean value I that obtains from fiducial value database 252.
Thus, use under transmitted power, the situation of transmission rate as CQI, similarly, mobile station UE does not need to measure continually the communication conditions with this sub-district and peripheral cell, and the communication conditions of only measuring when the wireless quality data satisfy rated condition with this sub-district and peripheral cell gets final product.In addition, can reduce and be used to implement switching processing.
That is, can when implementing to switch, alleviate the processing of mobile station UE, and alleviate the resource of the mobile station UE that is used to implement to switch and uses.
Radio Access Network can be provided.
(mobile communication system of the variation of embodiment of the present invention)
The wireless access network device of the variation of embodiment of the present invention is described with reference to Fig. 5, Fig. 6.
In the example of Fig. 5, the wireless access network device that can also possess historical information unit 263b this point and execution mode in the wireless access network device differs widely.
Specifically, order generation unit 263a constitutes, generation order based on the mensuration order that obtains from comparing unit 243, generation is used for making mobile station UE to switch the switching command that is connected to the sub-district different with this sub-district in a plurality of sub-districts at mobile station UE place, and switching command is sent to multiplexing synthesis unit 273.
In addition, order generation unit 263a constitutes, and receives historical information from historical information unit 263b.Order generation unit 263a constitutes, and based on historical information, generation is used for making mobile station UE to switch the switching command that is connected to the sub-district different with this sub-district in a plurality of sub-districts at mobile station UE place, and switching command is sent to multiplexing synthesis unit 273.
Specifically, put down in writing the switching historical information of mobile station UE among the historical information unit 263b.Expression has mobile station UE which sub-district to have implemented switching via in switching historical information.
Thus, order generation unit 263a can specify and switch the sub-district that connects by being applied to have the mobile station UE of identical switching history.
In addition, put down in writing the historical information that is used to represent the sub-district after mobile station UE is switched and switches the CQI ratio of preceding sub-district among the historical information unit 263b.
Thus, order generation unit 261a can be gone out to send to determine to specify which sub-district by the viewpoint of CQI ratio.
Multiplexing synthesis unit 273 constitutes, and to from the order switching command obtained of generation unit with send data and carry out multiplexing syntheticly, and applies and is transformed to the radio band Signal Processing, thereby be sent to transmitting element 283.
Fig. 6 represents the summary structure example of the mobile station UE of modified embodiment of the present embodiment.As shown in Figure 6, mobile station UE does not have the determination unit 14 of switching, switching signal generation unit 15, and has switching treatmenting unit 37.
According to the wireless access network device of modified embodiment of the present embodiment, multiplexing separative element 31 is obtained switching command via receiving element 30, and switching command is sent to switching treatmenting unit 37.
According to such mobile station UE, do not need to measure communication conditions with this sub-district and peripheral cell.
That is, can when implementing to switch, alleviate the processing of mobile station UE, and alleviate the resource of the mobile station UE that is used to implement to switch and uses.
(method for handover control of the present invention's the 1st execution mode)
Below, the method for handover control of present embodiment is described with reference to Fig. 7.Specifically, the situation that mobile station UE is implemented to switch by the method for handover control of present embodiment is described.
In addition, the method for handover control of embodiments of the present invention is not limited to above-mentioned situation, also can change according to condition.
As shown in Figure 7, in step S1001, obtain the wireless quality data of the wireless quality that is used for representing the communication link between mobile station UE and the wireless base station NodeB.
In step S1002, mobile station UE sends to wireless base station NodeB with the wireless quality data.
In step S1003, when the wireless quality data satisfied rated condition, wireless base station NodeB generated and to make mobile station UE begin to measure the mensuration order of the communication conditions in the peripheral cell of mobile station UE.
In step S1004, wireless access network device sends to mobile station UE and measures initiation command.
In step S1005, mobile station UE is measured the communication conditions in the peripheral cell of this mobile station UE, obtains measurement result.
In step S1006, mobile station UE sends to wireless base station NodeB with the measurement result of the communication conditions in the peripheral cell.
In step S1007, wireless access network device is judged measurement result, and generates the switching command that is used to make mobile station UE enforcement switching.
In step S1008, wireless access network device sends to mobile station UE with switching command.
In step S1009, mobile station UE receives switching command, thereby implements to switch.
(effect and the effect of the method for handover control of the present invention's the 1st execution mode)
As mentioned above, according to method for handover control of the present invention, mobile station UE does not need to measure continually the communication conditions with this sub-district and peripheral cell, and the communication conditions of only measuring when the wireless quality data satisfy rated condition with this sub-district and peripheral cell gets final product.In addition, can reduce and be used to implement switching processing.
That is, can be provided at the method for handover control that can alleviate the processing of mobile station UE when implementing to switch and alleviate the resource of the mobile station UE that is used to implement to switch and uses.
Industrial utilizability
As mentioned above, according to the present invention, can be provided at when implement switching, alleviate travelling carriage processing, And the wireless access network device, the travelling carriage that alleviate the resource of the travelling carriage that uses for implementing to switch reach Method for handover control.
Claims (5)
1, a kind of wireless access network device is characterized in that, comprising:
Receiving element is obtained the wireless quality data of the wireless quality that is used for representing the communication link between this travelling carriage and the base station from travelling carriage;
The order generation unit when described wireless quality data satisfy rated condition, generates the mensuration order of the communication conditions of the peripheral cell be used for beginning measuring described travelling carriage; And
Transmitting element sends described mensuration order to described travelling carriage.
2, a kind of wireless access network device is characterized in that, comprising:
Receiving element is obtained the wireless quality data of the wireless quality that is used for representing the communication link between this travelling carriage and the base station from travelling carriage;
The order generation unit when described wireless quality data satisfy rated condition, generates the switching command that is used for switching to from the 1st sub-district of the current connection of this travelling carriage 2nd sub-district different with described the 1st sub-district to described travelling carriage; And
Transmitting element sends described switching command to described travelling carriage.
3, wireless access network device as claimed in claim 2 is characterized in that,
The switching history of travelling carriage is saved in the historical information unit,
Described switching command generation unit is specified described the 2nd sub-district based on described switching history.
4, a kind of travelling carriage is characterized in that, comprising:
The wireless quality determination unit, the wireless quality in the communication link between mensuration and the base station, the wireless quality data of this wireless quality of acquisition expression;
Receiving element is obtained the mensuration order that is used for beginning measuring the communication conditions of peripheral cell from wireless access network device;
Determination unit after having obtained described mensuration order, is measured the communication conditions in the peripheral cell; And
Transmitting element sends to described wireless access network device with the measurement result of described wireless quality data and described communication conditions.
5, a kind of method for handover control is characterized in that, comprising:
Travelling carriage is obtained the step of the wireless quality data of the wireless quality that is used for representing the communication link between this travelling carriage and the base station;
Wireless access network device is obtained the step of wireless quality data from described travelling carriage;
When described wireless quality data satisfied rated condition, wireless access network device generated the step of mensuration order of the communication conditions of the peripheral cell that is used for beginning measuring this travelling carriage to described travelling carriage;
Described wireless access network device sends the step of described mensuration order to described travelling carriage; And
Described travelling carriage is measured the step of the communication conditions in the peripheral cell of this travelling carriage.
Applications Claiming Priority (2)
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| JP348427/2005 | 2005-11-02 | ||
| JP2005348427A JP2007129672A (en) | 2005-11-02 | 2005-11-02 | Wireless access network device, mobile station and handover control method |
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| CN101300863A true CN101300863A (en) | 2008-11-05 |
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| CNA2006800412005A Pending CN101300863A (en) | 2005-11-02 | 2006-11-01 | Wireless access network device, mobile station and switch control method |
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| US (2) | US20090262654A1 (en) |
| EP (1) | EP1954069A1 (en) |
| JP (1) | JP2007129672A (en) |
| KR (1) | KR20080060272A (en) |
| CN (1) | CN101300863A (en) |
| AU (1) | AU2006309688A1 (en) |
| BR (1) | BRPI0618165A2 (en) |
| RU (1) | RU2008119377A (en) |
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| CN102893664A (en) * | 2010-04-02 | 2013-01-23 | 株式会社Ntt都科摩 | Mobile apparatus and method in mobile communication system |
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| JP2007129672A (en) * | 2005-11-02 | 2007-05-24 | Ntt Docomo Inc | Wireless access network device, mobile station and handover control method |
| CN101313603B (en) * | 2005-11-21 | 2010-12-29 | 三菱电机株式会社 | Radio communication system, base station, mobile apparatus and handover control server |
| WO2009041498A1 (en) | 2007-09-26 | 2009-04-02 | Nec Corporation | Wireless communication system and method |
| GB2455060A (en) * | 2007-10-29 | 2009-06-03 | Nec Corp | Channel measurement in a mobile communications system |
| KR101007737B1 (en) | 2008-02-15 | 2011-01-13 | 주식회사 케이티 | Asynchronous Mobile Communication System for performing interfrequency hard handover using periodic measurement and method thereof |
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- 2006-11-01 AU AU2006309688A patent/AU2006309688A1/en not_active Abandoned
- 2006-11-01 WO PCT/JP2006/321909 patent/WO2007052722A1/en active Application Filing
- 2006-11-02 TW TW095140587A patent/TW200726288A/en not_active IP Right Cessation
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2011
- 2011-08-15 US US13/209,518 patent/US20110300869A1/en not_active Abandoned
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| CN102893664A (en) * | 2010-04-02 | 2013-01-23 | 株式会社Ntt都科摩 | Mobile apparatus and method in mobile communication system |
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| CN102316542A (en) * | 2011-09-09 | 2012-01-11 | 中兴通讯股份有限公司 | Blind switching or blind redirection method and system |
| WO2012151991A1 (en) * | 2011-09-09 | 2012-11-15 | 中兴通讯股份有限公司 | Blind handover or blind redirection method and system |
| US9326210B2 (en) | 2011-09-09 | 2016-04-26 | Zte Corporation | Blind handover or blind redirection method and system |
| CN102316542B (en) * | 2011-09-09 | 2018-01-19 | 中兴通讯股份有限公司 | A kind of blind handover or the method and system of blind redirection |
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| BRPI0618165A2 (en) | 2011-08-16 |
| TW200726288A (en) | 2007-07-01 |
| US20110300869A1 (en) | 2011-12-08 |
| WO2007052722A1 (en) | 2007-05-10 |
| TWI330044B (en) | 2010-09-01 |
| KR20080060272A (en) | 2008-07-01 |
| AU2006309688A1 (en) | 2007-05-10 |
| RU2008119377A (en) | 2009-12-10 |
| US20090262654A1 (en) | 2009-10-22 |
| JP2007129672A (en) | 2007-05-24 |
| EP1954069A1 (en) | 2008-08-06 |
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